Hand-sprayer.



PATENTED JUNE 16, 1903.

A. O. FREEMAN. HAND SPRAY ER.

APPLICATION FILED JULY 30, 1902.

N0 MODEL'.

5U on 50 Y O kvmz'm' wq wime/aoeo ALONZO O. FREEMAN, OF IONIA, MICHIGAN.

Patented June 16,1903.

" ATENT me.

I HAND-SPRAYER.

SPECIFICATION forming part of Letters Patent No. 731,033, dated June 16,1903.

Application filed July 30, 1902. Serial No. 117,687. (No model.) I

great facility by one hand, while at the same time providing athoroughly effective spray for any purpose desired. 1

A further object of the invention is to provide a novel type of handsprayer in the form of acomplete spraying attachment, which may beutilized in connection with any character of reservoir and which may bereadily attached and detached as may be required or desired." Irathisconnection the invention has in view aform of sprayer attachmentadapted'equally as well to an oil-can form of reservoir as to afruit-jar type of reservoir,

thus rendering the apparatus capable of a' wide range of use inconnection with different forms of receptacles.

1 in g the receptacle, thus enabling the operator.

Also-the invention has for an object the provision of a sprayer orspraying apparatus embodying operating means controlled by the finger ofthe same hand -supporting or carryto manipulate the sprayer by thefinger of the hand which holds the receptacle in any positionwith thespray-nozzle pointing in any direction. a

Another object of the invention is to provide a construction wherein thequantity as well as the force of the spray can be regulated to suit thecondition of the work, besides providingan arrangement wherein the pump--ing action of the spraying apparatus keeps the solution within thereservoir stirred and in'the best condition for use.

Vhile the invention possesses special utility as an insect-sprayer foragriculturists and horticulturists, yet at the same time it is usef u-lgenerally for sprinkling and cleaning purposes.

With these and many other objects in view, which will more readilyappear as the nature of the invention is better understood, the sameconsists in the novel construction, combination, and arrangement ofparts, which will be hereinafter more fully described, illustrated, andclaimed The essential features of the invention involved in theconstruction of the spraying apparatus, the adjustment thereof, and theoperating means therefor are necessarily susceptible to modificationwithout departing from the spirit or scope of the invention, but apreferred embodiment thereof is shown in the accompanying drawings, inwhich- Figure 1 is a side elevation of a sprayer attachment constructedin accordance with the present invention and shown applied to an oilcantype of reservoir. Fig. .2 is an eni rrged sectional view of the sprayerattachment proper, exposing the detail construction of the pumpingmechanism and the operating means therefor. Fig. 3 is an elevationshowing the ad aptation of the sprayer to a glass jar or equivalent typeof reservoir-receptacle.

Like numerals of reference designate corresponding parts throughout theseveral figures of the drawings. I

As already indicated, the type of reservoirreceptacle with which thesprayer attachment is associated is unimportant. Various forms of suchreceptacles may be employed, but for illustrative purposes there isshown in the drawings two different t'ypes of receptacles with which theattachment may be advantageously employed, and as the essential featuresof the invention are embodied in the construction and arrangement ofparts providing for a pumping action of the fluid to be sprayedparticular reference will first be made thereto.

As shown in the drawings, the sprayer attachment embodies a pumpingmechanism comprising means for drawing the fluid out of thereservoir-receptacle and then distributing it under pressure, by spray,to the point of application. This pumping mechanism includes a tubularfluid-circulating chamber 1, preferably inthe form of an extended pieceof tubing, and serving to receive the fluid from the reservoir and alsoto permit of its discharge for circulation out through thesprayrcspondingly opposite end with an o utlet-ne 1k 'outwardly-openingchcclcvalvc 5 3. The said inlet-neck 2 has suitably mount ed therein aninwardly-o'pening chcclcvalvc l, which permits the fluid to freely enterthe circnlaling-chamber l and closes in dircc tion to prevent thehackflow of fluid out through theinlct-port of the apparatus. Theoutlet-neck 3 also has mounted therein an which has permit of thedischarge of the iiuid from the chamber 1 under the impulse of thepunipin action to he presently referred to,

The present invention contemplates associating with the inlet-neck 2 ofthe pump in ll'lGil&!llSI]l an inlet-p 6, detachahly notherwise suitablyjoined one end to said inlet-neck and preferably provided a opposite endwith strainer or screen 7, pro-- viding for strz-iining the impuritiesfrom the iluid which is drawnfroin the pipe 6 into the discharging orcirculating chamber i. of the mechanism, and at this point it will beohserved that the said inlet-pipeG is also pref-.

erably setat an inclination to the longitudi nal plane of the tubularcirculating-chamber so that the receiving or strainer end 7 of theinlet-pipe will reach Well down into the bottom corner of thereservoir-receptacle, es-

pecially when the latter is held in a horizon ml or inclined position,such as it usually occupies during the spraying of plants and trees.

At the point of connection between the inlet-pipe and the inlet-neck ofthe circulatingchainber the attachment or pumping mech anism ispreferably provided with a screw-- coupling cap 8, which is necessarilyshaped to adapt the attachment or pumping niechan ism to the neck of theparticular reservoir-receptacle with which the invention may beassociated. In Fig. 1 of the drawings the reservoir-receptacle(designated by the referencenumeral 9) is shown as of the oil-can type,and the threaded opening 10 at the neck thereof is designed to receive ascrew-couplin g cap 8 in the form of an extcriorly-threaded collarcarried by the neck 2 of the chamber 1.; but in adapting the attachmentto different kinds of receptacles some modification in this part'of thesame must necessarily be resorted to. For instance, as indicated in Fig.of the drawings, the receptacle 9 is shown as being in the'forin of anordinary glass fruitcaress screwed in and out of position. provision forfilling orventing the reservoir rem' ptaclc may he resorted to withoutaliecting he iinprovermanis contemplated by the present invention,

' 'in outlet-neck 3 of the fiuii'l-circulating i is designed to haveassociated thereh a saitabie form ol' spray-nozzle 12. This spray-n axlepreferably of a curvedformation, scihat the spraying may be carried onwith sprayer held by the hand in a perfectly n aral position. Althoughany type of spra -nozzle maybe obviously employed as apart of theattachment; a form is shown in the drawings with which the nozzle isprovided a t the end thereof with a spraying rose init position, andwhen tightenedagainst the 15 of d nozzle serves to hold the same Thisfeature permits the nozzle to be turned to spray in any ,direction thatmay be desired with thchand in a natural position. I

The pn inpin mechanism has directly assoc iated with the in bular finid-circulatin g chainher pr.nip-cylinder 17. The chamber 1 practi allyterms the base of the pump-cylinder, he invention has in view a novelrelation between the cylinder and the said chamber, whereby the holdingand distributing capacity of the cylinder may be varied to suit theparticularobjects to be sprayed, and also to provide means whereby notonly the amount of spray may be controlled hut also the pressurethereof, which a very advantageous feature, particularly in the sprayingof plants and trees. Vhile this result may be accomplished by di tfercntmeans, a simple expedient is shown in the drawings as consisting in pro--viding an adjustable connection between the pr. nip-cy inde r and thecirculating-fluid chamo e-r thereof. The adjustable connection re ferredto is securedhy providing the fluidchainher 1 between the'opposite endsthereof with alaterally-oiiset interiOrly-threaded collar 18, adapted toadjustably as well' asdetach ably receive the threaded lower extremity1:") of thc-puinpcylinder1'7. The said threaded portion of thepump-cylinder also may be fitted with a lock nut or ring 20, adapted towork against 1e collar 18, therebyserving to fasten the cylinder in itsadjusted position. It will be obvious that by varying the projection ofthe punip-cylinder within and out of it the i are of the pumpingmechanism is ily aiiiccting the amount culatingchamloer 1 the capacityof ed, well as the pres? Any suitable 5 sure or force under which it isejected through the spraying-nozzle, by reason of necessarily varying tosome extent the play of the piston 21 within the cylinder.

The piston 21,which works within the pumpcylinder '17, is'of thevalveless or closed type and in the present invention is carried uponthe inner end of a piston rod or stem 22Fworking through a guide-opening23 in the detachable cap 24, fitting over the outer end of thepump-cylinder. The outstroke of the piston 21 is preferably madeautomatic through the medium of a coiled operating-spring 25, interposedbetween the base of the chamber 1 and the inner side of the piston 21.The instroke of the piston is effected through the medium of afinger-operated means controllable by the hand carrying thereservoir-receptacle.

Preferably the operating means referred to includes a finger-lever 26 ofa bell-crank type and pivotally mounted between its ends, as at 27, upona supporting-arm 28, carried by a band 29, detachably clamped upon thecylinder 17 and designed to beloosened up and retighten'ed when thecylinder is adjusted to vary the capacity of the pump, as previouslyreferred to.

The finger-lever 26 at one side of its pivot 27 is formed intoa'pressure-arm 30, operativcly related to the outer end of the pistonrod or stem 22. Preferably the outer end of he stem 22 is provided withan antifrictionroller 31 to relieve the pressure of the arm 30,

. and thus reduces the friction at this point to a minimum. Theextremity of the lever 26 opposite its pressure-arm 30 is provided witha pull-ring or handle 32, which isengaged by the finger of the same handthat engages the In operating the sprayer it will be observed,

that a regular pumping action is maintained eonjointly through themedium of the fingerlever 26 and the spring 25. On the downstroke of thepiston 21under the influence of the pull on the lever 26 thecheck-valvea is closed, and any fluid in the chamber 1 is forced pastthe check-valve 5 into and through the spray-nozzle 12. The force'oithis ejection of the fluid may be controlled largely through the forceof the pull upon the finger-lever. On the outstroke of the piston underthe influence of thespring 25 the check-valve 5 closes and the valvc topens,

whereby the fluid may be sucked or drawn through the pipe 6 irto thechamber 1. It will thus be seen that irrespective of the character ofreceptacle that maybe employed a complete pumping and spraying action isaccomplished and from the same hand thatcarries the receptacle. s

From the foregoing it is thought that the construction,operatiomandmanyadvantages the herein-described hand-sprayer will be ofthefinger-actuated operating means for the,

pump adjacent thereto may be carried out in connection with differenttypes of pumping mechanismsuch, for instance, as a singleair-pump,comprising means for forcing the liquid from the reservoir out throughthe spray-nozzle.

Having thus described the invention, that is claimed, and desired to besecured by Letters Patent, is

1. In a hand-sprayer, the combination of a reservoir-receptacle having afixed hand-grip,

a sprayer attachment detachably fitted to the receptacle and comprisinga fluid-circulating chamber arranged to constitute the spout of thereceptacle, a spray-nozzle carried by the circulating-chamber as acontinuation thereof, and a pumping mechanism offset laterally from anintermediate point of the circulating chamber and including aspringprojected piston-rod, and a pivotally-supported fingerleversustained bythe pump-cylinder and having separate members cooperatingrespectively with the piston-rod and the fixed handgrip of thereceptacle.

In a hand-sprayer, the combination with the reseivoir-receptacle havinga fixed handgrip, a valved circulating-chamber arranged as the spout forthe receptacle and provided atone end with an inlet-pipe extending intothe latter, a spray-nozzle fitted to the outer end of thecirculating-chamberas a continuation thereof, apump-cylinder projectedfrom the side of the circulating-chamberbetween the valves thereof, apiston working within the cylinder, a spring located within thecirculating-chamber and bearing against the piston, and apivotally-supported finger-lever sustained by the pump-cylinder andhaving a pressure-arm cooperating with the piston, said lever alsohaving a member disposed in operative relation to the fixed hand-grip.

3. In a hand-sprayer, the combination with the reservoirreccptaclehaving a fixed handgrip, a valved fluid-circulating chamber detachablyfitted to the reservoir-receptacle and provided at one end with aninlet-pipe extending into said receptacle and at its other end with aspray-nozzle, a pump-cylinder fitted to said chamber between the valvesin an outward direction, and a pivota11y-suphaving anantifriction-roller-bearing engagethereof, a piston working in saidcylindera nd of said lever being disposed in proximity to having a rodor stem projecting outside of the said hand-grip. same, a spring"arranged to move the piston In testimony whereof I affix my signature inpresence of two Witnesses.

ALONZO O. FREEMAN.

ported finger-lever sustained by the pump- C. 0. THOMPSON,

cylinder and provided with a presiure-arm l Witnesses:

ment with the piston md or stem the null end LOUIS THOMPSON.

